<div class="left">
    <div class="left_nav">
        <div class="first_level {if $url=='User/index'}selected{/if}">
            <a class="card-link" href="{:url('User/index')}">
                <h3 class="whole m-0">
                    个人信息
                </h3>
            </a>
        </div>
        <div class="first_level {if $url=='User/order'}selected{/if}">
            <a class="card-link" href="{:url('User/order')}">
                <h3 class="whole m-0">
                    我的订单
                </h3>
            </a>
        </div>
        <div class="first_level {if $url=='User/read'}selected{/if}">
            <a class="card-link" href="{:url('User/read')}">
                <h3 class="whole m-0">
                    我的借阅
                </h3>
            </a>
        </div>
        <div class="first_level {if $url=='User/address'}selected{/if}">
            <a class="card-link" href="{:url('User/address')}">
                <h3 class="whole m-0">
                    收货地址
                </h3>
            </a>
        </div>
        <div class="first_level">
            <a class="card-link" href="{:url('User/logout')}">
                <h3 class="whole m-0">
                    退出登录
                </h3>
            </a>
        </div>
    </div>
</div>